Easter Day bombings at three Sri Lankan churches and four hotels killed dozens and wounded more than 400, hospital and police officials said, following a lull in major attacks since the end of the civil war 10 years ago.
Our top photos from the past week.
Reuters wins the Pulitzer Prize for breaking news photography for its coverage of migrants traveling to the United States.
Wild bluebells form a carpet of blue in the Hallerbos, also known as the 'Blue Forest', near the Belgian city of Halle.
At least 480 people have been arrested so far this week in climate change demonstrations across London by Extinction Rebellion.
Cowboys converge on Montevideo to show off their skills during Creole week celebrations.
Christians around the world celebrate the week leading up to Easter Sunday.
Chinese teenagers completed a tour of a space colony against a desolate backdrop at a Chinese-built Mars simulation base in the barren, windswept hills of Gansu province.